CVE-2026-64178

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

0.25% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 16.0% of scored records. A rank, not a probability.

NVD base score

8.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD analysis status

Analyzed. NVD last modified this record on 2026-08-12.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-07-19 15:41Z1 MO AGO

Last updated

2026-08-05 12:39Z1 MO AGO

Reserved

2026-07-19

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 8.8)

CNA CVSS vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

• CWE-416Use After FreeVariant
• CWE-825Expired Pointer DereferenceBase

Data version

5.2

Document digest

81e3c7193095ad5c76fc4aacc082eda6dd7bbea2422530371e5cfaef8c0b0075

• git.kernel.orghttps://git.kernel.org/stable/c/a75bbcb10cb21acc169b785e9804f57d97873a9c
• git.kernel.orghttps://git.kernel.org/stable/c/4907596f25b1720fa948371ac5f6c1f8da10a5bc
• git.kernel.orghttps://git.kernel.org/stable/c/915a92182e2cda9cd7d2479020a44c6eda986f7c
• git.kernel.orghttps://git.kernel.org/stable/c/fe69f634b076ae3ca81c5a5b845d9bba527036f7
• git.kernel.orghttps://git.kernel.org/stable/c/b21805258d7e926adfd455fc820a447b90da3b82
• git.kernel.orghttps://git.kernel.org/stable/c/5506aec795135cdd4cbf4e845929155663b25055
• git.kernel.orghttps://git.kernel.org/stable/c/e7578529b97e5d4e439cf8f3e637c2303015338f
• git.kernel.orghttps://git.kernel.org/stable/c/59e932ded949fa6f0340bf7c6d7818f962fa4fd2